134955-54-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 134955-54-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,4,9,5 and 5 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 134955-54:
(8*1)+(7*3)+(6*4)+(5*9)+(4*5)+(3*5)+(2*5)+(1*4)=147
147 % 10 = 7
So 134955-54-7 is a valid CAS Registry Number.